Oil-burner.



PATENTBD MAR. 10, 1903. J. MUDERMOTT. Y

OIL BURNER.

APPLIOATION FILED SEPT. 27, 1902.

NO MODEL.

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UNITED STATES PATENT EEicE.'

JOHN MCDERMOTT, OF WEST BERKELEY, CALIFORNIA.

OIL-BURNER.

SPECIFICATION forming part of Letters Patent No. 722,530, dated. vMarch10, 1903. Application filed September 27, 1902. SerialNo. 125,071. iNomodel.)

To all whom, it may concern:

Be it known that I, J onN MoDERMoTT, a

citizen of the United States, residing at Westv Berkeley, county ofAlameda, State of California, have invented an Improvementin Oil-Burners; and I hereby declare the following erence to the accompanyingdrawings, in

which- Figure 1 is alongitudinal section of burner. Fig. 2 is a generalview of corrugated baffleplates. Fig. 3 is an outside view of inner andconcentric chamber. Fig. 4 is ageneral view of chamber at front end of Awith burner attached. Fig. 5 is a bottom end view of oilinlet pipe. Fig.6 is a face view of disk 6. Fig. 7 is a view of the upper end of pipe12.'V

I have here shown my apparatus as con-` sisting of a tubular chamber A,having within it a series ot' spirally and conically twisted` wires 2.One or more of these spiral cones may be disposed within the chamber. Ihave here shown the device as comprising three of such spirals, the wirefrom the apex of one cone being continued and expanded to form'v thebase of the second cone, and so on to the last one. The wire from thelast one extends to the end of the tube A and is there expanded in anysuitable manner, as shown at 3, toV

retain the cones approximately central within the tube A. To the rearend of the tube A is screwed a nipple or chamber 4, and into the rearend of this chamber extends a pipe 5, adapted to conduct steam or air.This pipe extends close to the base of the first spiral cone 2 and isinterrupted at a point anterior to the oil-supply tube by a perforateddiaphragm or bafHe-plate 6, and through the openings made in this platethe steam passes in fine jets.

The oil-pipe 9 extends down through the side ofthe chamber 4 and intothe pipe 5 between the Yplate 6 and the rear of the first cone 2. Thebottom of the pipe 9 is closed by a plate 10, having a slot 11 madetransversely across it, so that the oil passing down through the pipe 9passes into the pipe 5 in the form of a thin sheet extendingapproximately across the pipe. The jets of vsteam from the rear strikethis sheet of oil, which is thus blown into forcible contact with thecoil or coils 2 and carried through them. The repetition of these coilsrepeats the action of the first one in more completely subdividing andcomminuting the oil and thoroughly mixing it with the steam or steam andair, if the latter be employed.

In order to prevent the oil from settling upon the bottom of the-tube A,I have shown a second pipe 12, opening into the lower part of thechamber 4 and below the pipe 5. The inner end of this pipe 12 is closed,as shown,

and in the side ot' it is made a horizontallydisposed slit, as shown at13. Through this slit the steam or hot-air jet is discharged beneath thepipe 5 and along the lower part of the chamber A, this jet serving tokeep any oil from being deposited in the lower part of the Vchamber A.

To the front end of the pipe A is secured 4the chamber l-l, and to thefront end of this chamber is connected the lburner-tip 15, which may bemade of any suitable or desired shape, having, preferably, adischargeslit 16, through which the combustible is finally delivered tothe furnace.

Within the chamber 14 is contained an inner and 'essentially concentricchamber 17, which is here shown as formed in two halves lengthwise andhaving a closed outer end with a narrow dischargeslit transverselyacross it, as shown at 1S. W'ithin this chamber are iixed the corrugatedbathe-plates 19. These plates are here shown as being formed with aseries of concavo-convex-channels extending transversely from side toside, one in the upper and the other in the lower half of the chamber17, and the plates are so set that the portions present-ed toward thechamber A are separated from each other to nearly the full diameter ofthe chamber 17. Thence they converge to the discharge-opening 18 in thefront end of the chamber. The object of ICO Vshown that this dischargevery rapidly wears out the burner-tips of such apparatus, and the objectof the construction is to provide the interior removable chamber 17 andbaffle-plates 19 to receive this impact, these being cheaply replaced bysimply unscrewing the chamber 14 and replacing the parts 17 and 19 whenworn out. In this manner the burner-tip is relieved from the greaterportion of the wear to which it would be otherwise subjected and willlast for a long time.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is-

1. An apparatusfor burning petroleum-oil consistingofachamberhavingoneormore spiral conical coils located therein, a burner-tip connected withthe front end of said chamber, a steam or air inlet pipe axially in linewith the rear end, and a pipe through which oil is delivered at an anglewith the steam-jet and behind the spiral coils, said oil-pipedischarging the oil in a thin sheet-like form approximately across thechamber and in the path of the steam-jet.

2. 4An apparatus for the combustion of hydrocarbon oils consisting of atubular chamber having one or more spiral conical coils located axiallybetween the rear and front end, a burner-tip connected with the frontend, a steam or air inlet pipe opening into the rear of the chamber andin line with its axis, an oil-conducting pipe opening at an angle intothe steam-pipe having a transverse slit at the lower end whereby the oilis delivered in a sheet across the steam-pipe and is blown thereby intoand through the coils in the chamber.

3. An apparatus for burning hydrocarbon oil, consisting of a chamberhaving the burnertp at the front, a plurality of spiral conical coilslocated axially in said chamber, a steam or air inlet pipe extendinginto the rear ofthe chamber and in line with its axis, an oil-conductingpipe opening into the upper part of the steam-pipe at right anglestherewith and having a transverse slit by which the oil is deliveredinto the pipe in a thin sheet, a. perforated diaphragm fixed in thesteam-pipe behind the oil-inlet pipe whereby thesteam is delivered injets against the sheet of oil and the mixed product is forced throughthe coils.

4. An apparatus for the combustion of-hydrocarbon oil consisting of achamber having a burner-tip at the front, a plurality of connectedspiral conical coils located axially within the chamber, a centrallydisposed steam and air pipe extending into the rear of the chamber andaxial therewith, an oil-conducting pipe entering the top of thesteampipe at right angles and having a transverse slit through which theoil is delivered in a sheet across the steam pipe, a perforated platethrough which the steam -jet is discharged against the sheet of oil, andthe latter blown through the coils in the chamber, a pipe entering thelower part of the chamber behind the coils having a horizontalforwardly-directed slit whereby a jet of heated medium is dischargedthrough the lower side of the chamber and the coils to prevent thesettling of the oil.

5. An apparatus for the combustion of hydrocarbon oil consisting of amixing-chamber with oil and steam or air inlets at the rear, a

burner-tip located at the front, a chamber inhand.

JOHN MCDERMOTT.

Witnesses: v

S. H. NoURsE, `JEssIn C. BRoDIE.

